All of this "evidence" boils down to "this is very inconvenient for my side, and very convenient for the other side, therefore it's obviously a false flag." It's the same logic that led Alex Jones to say Sandy Hook was faked by crisis actors: 1. the shooting would justify gun control, 2. the US government wanted gun control, so 3. the government faked Sandy Hook to justify gun control. in this case it's 1. the shooting would justify claims that pro-Palestinian activists are violent, 2. the Israeli government wants to portray activists as violent, so 3. the IDF shot their own diplomat.
Rational skeptics start with the facts and follow them to a belief. Conspiracy theorists start with their belief and find facts to support it. Do better.